Windows 3.1 Device Drivers (ddag31qh.hlp) (Table of Contents; Topic list)
Important Notice
The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
PPEN
PPEN Specifies an integer, array, or structure containing device-specific
information that a driver can use to draw lines and borders. The exact size
and content of a physical pen depend entirely on the driver.